EP2212232B1 - Device for hoisting loads - Google Patents

Device for hoisting loads Download PDF

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Publication number
EP2212232B1
EP2212232B1 EP08758601A EP08758601A EP2212232B1 EP 2212232 B1 EP2212232 B1 EP 2212232B1 EP 08758601 A EP08758601 A EP 08758601A EP 08758601 A EP08758601 A EP 08758601A EP 2212232 B1 EP2212232 B1 EP 2212232B1
Authority
EP
European Patent Office
Prior art keywords
expansion
cavity
parts
axis
expansion parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08758601A
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German (de)
French (fr)
Other versions
EP2212232A1 (en
Inventor
Michael Lubas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lubas Maschinen GmbH
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Lubas Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lubas Maschinen GmbH filed Critical Lubas Maschinen GmbH
Publication of EP2212232A1 publication Critical patent/EP2212232A1/en
Application granted granted Critical
Publication of EP2212232B1 publication Critical patent/EP2212232B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/54—Internally-expanding grippers for handling hollow articles

Definitions

  • the invention relates to a device for lifting of a cylindrical cavity having loads in particular of rolled goods such as paper rolls with a retractable into the cavity insert part, are mounted in the expansion parts, which generate a frictional connection with the cavity wall during lateral extension.
  • a device according to the preamble of claim 1 is made DE 20201163U known.
  • the object of the invention is to improve a device of the type mentioned so that with a simple design and handling a secure function is guaranteed.
  • the strigkbaren spreading parts according to the invention adapt to the function of retraction and extension, which are inserted when retracting the device with pivoted expansion parts, these through the cavity of the load in the device and tighten when lifting the device upwards independently.
  • the tightening is supported by springs.
  • the axis of the expansion parts is arranged at right angles to the axis of the cavity. It is also advantageous if the expansion parts are designed as eccentric, wherein the cavity wall with a frictional connection generating outer surface of each expansion part of the non-adjacent to the cavity wall outer surface area to the adjacent area increases in radius. It is particularly advantageous if, when the device can be inserted from above, the expansion parts can be put down by the spring force, with the expansion parts projecting outward beyond the outer dimensions of the device when the device is pivoted downwards.
  • a secure release of the device is achieved if, attached to each expansion part, a train applying means, in particular a solenoid or a cylinder-piston unit, by means of which the expansion parts are movable from the expanded position.
  • a train applying means in particular a solenoid or a cylinder-piston unit
  • the device performing a train can be fastened to the expansion part via a traction means, in particular a cable or a chain.
  • a traction means in particular a cable or a chain.
  • a safe function is given when the chain rests on a sprocket connected to the spreader.
  • the sprocket should be arranged coaxially to the axis of rotation of the expansion part.
  • the device has a cylindrical, downwardly tapering outer housing whose outer walls have vertical slots for the passage of the expansion parts is particularly advantageous.
  • the lifting device has a cylindrical housing 1 with a downwardly tapering end 2. If the lifting device to be inserted into the inner cylindrical cavity of a roll of paper, while the roller cavity is perpendicular and thus open at the top, the longitudinal axis 3 of the device is oriented vertically, so that the device from above into the roller cavity can be inserted.
  • Each expansion member is pivotable in opposite directions of rotation to the outside, wherein in in Fig. 1 shown retracted state, the expansion parts are substantially above the axis 7, while in the swung out, in Fig. 2 illustrated state, the expansion parts by arranged in the housing, to the device axis axially parallel slots 8 protrude beyond the housing and lie with a majority of Sp Rudteilmasse below the axis 7.
  • the outer surface of each expansion part 5, 6, which generates a frictional connection with the cavity wall increases in its radius R from the outer surface region, which is not adjacent to the cavity wall, to the adjacent region.
  • the pivoting of the expansion parts 5, 6 down can be done by their own weight. This movement is preferably also supported by two helical tension springs 10a, 10b, which are fastened between the respective underside of the expansion part and the lower end of the device.
  • sprockets 12 To the spreader parts 5, 6 and / or on additional wheels 11 sprockets 12 are arranged, these sprockets or wheels are rotatably mounted on the axis 7.
  • chains 8, 9, On the sprockets 12 are chains 8, 9, which extend upwardly within the interior 4 and are secured to the underside of the armature of solenoids 13, 14, which are fixed within the interior 4 in the upper region. If the solenoids 13, 14 are put under tension, the chains 8, 9 are tightened and thereby the sprockets of the wheels 11 are pivoted so that the expansion parts 5, 6 are pulled upwards and thus.
  • solenoids 13, 14 and cylinder-piston units for releasing the expansion parts 5, 6 can be used.
  • the solenoids or cylinder-piston units can be connected instead of chains by a rope with the wheels 11 and / or spreading parts 5, 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

The invention relates to a device for hoisting loads having a cylindrical hollow space, particularly rolled goods such as paper reels, having an insertion part that may be inserted into the hollow space, expansion pieces (5, 6) being mounted in said insertion part that form a non-positive connection with the wall of the hollow space when extended laterally, wherein each expansion piece is mounted in a pivotable fashion about the same axis (7), pivotable into the expanded position by spring force (10a, 10b), and movable out of the expanded position by a force (13, 14) acting opposite the spring force.

Description

Die Erfindung betrifft eine Vorrichtung zum Anheben von einen zylindrischen Hohlraum aufweisenden Lasten insbesondere von aufgerollter Ware wie Papierrollen mit einem in den Hohlraum einfahrbaren Einschubteil, in dem Spreizteile gelagert sind, die beim seitlichen Ausfahren einen Kraftschluss mit der Hohlraumwand erzeugen. Eine Vorrichtung gemäss dem Oberbegriff des Anspruchs 1 ist aus DE 20201163U bekannt.The invention relates to a device for lifting of a cylindrical cavity having loads in particular of rolled goods such as paper rolls with a retractable into the cavity insert part, are mounted in the expansion parts, which generate a frictional connection with the cavity wall during lateral extension. A device according to the preamble of claim 1 is made DE 20201163U known.

Aus der DE 945 864 ist eine Hebevorrichtung für Papierrollen bekannt, mit einem Einsteckteil, an dem Spreizteile durch einen Konus nach außen drückbar sind, um einen Kraftschluss zwischen der Hebevorrichtung und dem zylindrischen Innenraum der Papierrolle zu schaffen. Ähnliche Vorrichtungen mit Spreizkonus sind auch aus der WO 90/06895 und der US 5,439,264 bekannt. Diesen bekannten Vorrichtungen ist gemeinsam, dass sie technisch aufwendig sind und einer sorgfältigen Bedienung bedürfen. Ferner ist ein sicherer Halt nicht immer gegeben.From the DE 945 864 For example, there is known a paper roll elevator having a male member on which expansion members are pushable outwardly by a cone to provide a positive connection between the elevator and the cylindrical interior of the paper roll. Similar devices with expansion cone are also from the WO 90/06895 and the US 5,439,264 known. These known devices have in common that they are technically complex and require careful operation. Furthermore, a secure hold is not always given.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Art so zu verbessern, dass bei einfacher Konstruktion und Handhabung eine sichere Funktion gewährleistet ist.The object of the invention is to improve a device of the type mentioned so that with a simple design and handling a secure function is guaranteed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass jedes Spreizteil als Reibrichtgesperre im Innenraum der Vorrichtung um eine Achse verschwenkbar gelagert, durch Federkraft in die Spreizposition verschwenkbar und durch eine der Federkraft entgegengesetzt wirkende Kraft aus der Spreizposition bewegbar ist.This object is achieved in that each spreading member mounted as Reibrichtgesperre in the interior of the device pivotable about an axis, by spring force in the Spreizposition pivotally and by a the spring force oppositely acting force from the Spreizposition is movable.

Die erfindungsgemäßen verschenkbaren Spreizteile passen sich der Funktion des Ein- und Ausfahrens an, wobei beim Einfahren der Vorrichtung mit ausgeschwenkten Spreizteilen, diese durch den Hohlraum der Last in die Vorrichtung eingeschoben werden und beim Heben der Vorrichtung nach oben sich selbstständig festziehen. Hierbei wird das Festziehen durch Federn unterstützt.The verschenkbaren spreading parts according to the invention adapt to the function of retraction and extension, which are inserted when retracting the device with pivoted expansion parts, these through the cavity of the load in the device and tighten when lifting the device upwards independently. Here, the tightening is supported by springs.

Vorzugsweise wird vorgeschlagen, dass die Achse der Spreizteile rechtwinklig zur Achse des Hohlraumes angeordnet ist. Ferner ist von Vorteil, wenn die Spreizteile als Exzenter ausgebildet sind, wobei die mit der Hohlraumwand einen Reibschluss erzeugende Außenfläche jedes Spreizteiles von dem an der Hohlraumwand nicht anliegenden Außenflächenbereich zum anliegenden Bereich in ihrem Radius zunimmt. Besonders vorteilhaft ist es, wenn bei von oben einsteckbarer Vorrichtung die Spreizteile durch die Federkraft nach unten verschenkbar sind, wobei beim Nachuntenverschwenken die Spreizteile nach außen über die Außenabmessungen der Vorrichtung vorragen.It is preferably proposed that the axis of the expansion parts is arranged at right angles to the axis of the cavity. It is also advantageous if the expansion parts are designed as eccentric, wherein the cavity wall with a frictional connection generating outer surface of each expansion part of the non-adjacent to the cavity wall outer surface area to the adjacent area increases in radius. It is particularly advantageous if, when the device can be inserted from above, the expansion parts can be put down by the spring force, with the expansion parts projecting outward beyond the outer dimensions of the device when the device is pivoted downwards.

Ein sicheres Lösen der Vorrichtung wird dann erreicht, wenn an jedem Spreizteil eine einen Zug ausübende Einrichtung insbesondere ein Solenoid oder ein Zylinder-Kolben-Aggregat befestigt ist, durch die die Spreizteile aus der Spreizposition bewegbar sind. Hierbei kann die einen Zug ausübende Einrichtung über ein Zugmittel insbesondere ein Seil oder eine Kette am Spreizteil befestigt sein. Eine sichere Funktion ist dann gegeben, wenn die Kette auf einem mit dem Spreizteil verbundenen Zahnkranz aufliegt. Hierbei sollte der Zahnkranz koaxial zur Drehachse des Spreizteiles angeordnet sein.A secure release of the device is achieved if, attached to each expansion part, a train applying means, in particular a solenoid or a cylinder-piston unit, by means of which the expansion parts are movable from the expanded position. In this case, the device performing a train can be fastened to the expansion part via a traction means, in particular a cable or a chain. A safe function is given when the chain rests on a sprocket connected to the spreader. Here, the sprocket should be arranged coaxially to the axis of rotation of the expansion part.

Besonders vorteilhaft ist es, wenn die Vorrichtung ein zylindrisches, sich nach unten verjüngendes Außengehäuse aufweist, deren Außenwände senkrechte Schlitze für den Durchtritt der Spreizteile aufweisen.It when the device has a cylindrical, downwardly tapering outer housing whose outer walls have vertical slots for the passage of the expansion parts is particularly advantageous.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen in senkrechten Längsschnitten dargestellt. Es zeigen

Fig. 1
die Vorrichtung mit eingefahrenen Spreizteilen und
Fig. 2
die Vorrichtung mit ausgefahrenen Spreizteilen.
An embodiment of the invention is shown in the drawings in vertical longitudinal sections. Show it
Fig. 1
the device with retracted expansion parts and
Fig. 2
the device with extended expansion parts.

Die Hubvorrichtung weist ein zylindrisches Gehäuse 1 mit einem sich nach unten verjüngenden Ende 2 auf. Soll die Hebevorrichtung in den inneren zylindrischen Hohlraum einer Papierrolle eingeführt werden, während der Rollenhohlraum senkrecht steht und damit nach oben offen ist, so ist die Längsachse 3 der Vorrichtung senkrecht ausgerichtet, so dass die Vorrichtung von oben in den Rollenhohlraum einführbar ist.The lifting device has a cylindrical housing 1 with a downwardly tapering end 2. If the lifting device to be inserted into the inner cylindrical cavity of a roll of paper, while the roller cavity is perpendicular and thus open at the top, the longitudinal axis 3 of the device is oriented vertically, so that the device from above into the roller cavity can be inserted.

Im Innenraum 4 der Vorrichtung sind zwei exzenterförmige, plattenförmige Spreizteile 5, 6 um dieselbe waagerechte Drehachse 7 voneinander unabhängig verschwenkbar gelagert. Hierbei wird unter derselben Drehachse die gleichachsige Lage beider Drehachsen der Spreizteile 5, 6 verstanden.In the interior 4 of the device are two eccentric, plate-shaped spreading parts 5, 6 about the same horizontal axis of rotation 7 mounted independently pivotable. Here, the equiaxed position of both axes of rotation of the expansion parts 5, 6 is understood by the same axis of rotation.

Jedes Spreizteil ist in entgegengesetzte Drehrichtungen nach außen verschwenkbar, wobei im in Fig. 1 dargestellten eingefahrenen Zustand die Spreizteile im wesentlichen oberhalb der Achse 7 liegen, während im ausgeschwenkten, in Fig. 2 dargestellten Zustand die Spreizteile durch in der Gehäusewandung angeordnete, zur Vorrichtungsachse achsparallele Schlitze 8 über die Gehäusewandung hinausragen und mit einem Großteil der Spreizteilmasse unterhalb der Achse 7 liegen. Hierbei nimmt die mit der Hohlraumwand einen Reibschluss erzeugende Außenfläche jedes Spreizteiles 5, 6 von dem an der Hohlraumwand nicht anliegenden Außenflächenbereich zum anliegenden Bereich in ihrem Radius R zu.Each expansion member is pivotable in opposite directions of rotation to the outside, wherein in in Fig. 1 shown retracted state, the expansion parts are substantially above the axis 7, while in the swung out, in Fig. 2 illustrated state, the expansion parts by arranged in the housing, to the device axis axially parallel slots 8 protrude beyond the housing and lie with a majority of Spreizteilmasse below the axis 7. In this case, the outer surface of each expansion part 5, 6, which generates a frictional connection with the cavity wall, increases in its radius R from the outer surface region, which is not adjacent to the cavity wall, to the adjacent region.

Das Verschwenken der Spreizteile 5, 6 nach unten kann durch deren Eigengewicht erfolgen. Unterstützt wird diese Bewegung vorzugsweise noch durch zwei Schraubenzugfedern 10a, 10b, die zwischen der jeweiligen Unterseite des Spreizteils und dem unteren Ende der Vorrichtung befestigt sind.The pivoting of the expansion parts 5, 6 down can be done by their own weight. This movement is preferably also supported by two helical tension springs 10a, 10b, which are fastened between the respective underside of the expansion part and the lower end of the device.

An den Spreizteilen 5, 6 und/oder auf zusätzlichen Rädern 11 sind Zahnkränze 12 angeordnet, wobei diese Zahnkränze bzw. Räder drehbar auf der Achse 7 gelagert sind. Auf den Zahnkränzen 12 liegen Ketten 8, 9, die nach oben innerhalb des Innenraums 4 verlaufen und an der Unterseite der Anker von Solenoiden 13, 14 befestigt sind, die innerhalb des Innenraums 4 im oberen Bereich fest sind. Werden die Solenoide 13, 14 unter Spannung gesetzt, so werden die Ketten 8, 9 angezogen und hierdurch die Zahnkränze der Räder 11 so verschwenkt, dass die Spreizteile 5, 6 nach oben und damit eingezogen werden.To the spreader parts 5, 6 and / or on additional wheels 11 sprockets 12 are arranged, these sprockets or wheels are rotatably mounted on the axis 7. On the sprockets 12 are chains 8, 9, which extend upwardly within the interior 4 and are secured to the underside of the armature of solenoids 13, 14, which are fixed within the interior 4 in the upper region. If the solenoids 13, 14 are put under tension, the chains 8, 9 are tightened and thereby the sprockets of the wheels 11 are pivoted so that the expansion parts 5, 6 are pulled upwards and thus.

Statt der Solenoide 13, 14 können auch Zylinder-Kolben-Aggregate zum Lösen der Spreizteile 5, 6 eingesetzt werden. Die Solenoide oder Zylinder-Kolben-Aggregate können statt durch Ketten auch durch ein Seil mit den Rädern 11 und/oder Spreizteilen 5, 6 verbunden sein.Instead of the solenoids 13, 14 and cylinder-piston units for releasing the expansion parts 5, 6 can be used. The solenoids or cylinder-piston units can be connected instead of chains by a rope with the wheels 11 and / or spreading parts 5, 6.

Claims (9)

  1. Device for hoisting loads, which have a cylindrical cavity, particularly rolled goods such as paper rolls with an insert, which may be inserted into the cavity, in which expansion parts (5, 6) are mounted, which produce a frictional connection with the walls of the cavity when extended sideways, characterised in that each expansion part (5, 6) may be mounted, so that it may pivot around the same axis (7) inside the device as a friction directed lock, may pivot into the expansion position through spring force (10a, 10b) and may be moved out of the expansion position through a force (13, 14) acting opposite the spring force.
  2. Device according to claim 1, characterised in that the axis (7) of the expansion parts (5, 6) is arranged at right angles to the axis of the cavity.
  3. Device according to claim 1 or 2, characterised in that t the expansion parts (5, 6) are made as eccentrics, in which the outer surface of each expansion part (5, 6) producing a friction connection with the wall of the cavity increases in its radius (R) from the outer surface area, which is not adjacent to the wall of the cavity, to the area, which is adjacent.
  4. Device according to one of the previous claims, characterised in that with the device which may be inserted from above, the expansion parts (5, 6) may be pivoted downwards through the spring force (10a, 10b), in which the expansion parts project outwards over the external dimensions of the device when pivoted downwards.
  5. Device according to one of the previous claims, characterised in that a unit exerting traction, particularly the armature of a solenoid (13, 14) or a cylinder piston assembly, is fastened to each expansion part (5, 6), through which the expansion parts may be moved out of the expansion position.
  6. Device according to claim 5, characterised in that the unit (13, 14) exerting traction is fastened to the expansion part (5, 6) through a traction mechanism, particularly a cable or a chain (8, 9).
  7. Device according to claim 6, characterised in that the chain (8, 9) is on a ring gear (12) connected to the expansion part.
  8. Device according to claim 7, characterised in that the ring gear (12) is arranged coaxially to the axis of rotation (7) of the expansion part (5, 6).
  9. Device according to one of the previous claims, characterised in that it has a cylindrical outer housing (1) narrowing downwards, the outer walls of which have vertical slits for the expansion parts (5, 6) to penetrate.
EP08758601A 2007-10-17 2008-05-17 Device for hoisting loads Not-in-force EP2212232B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007049632A DE102007049632A1 (en) 2007-10-17 2007-10-17 Device for lifting loads
PCT/EP2008/003981 WO2009049689A1 (en) 2007-10-17 2008-05-17 Device for hoisting loads

Publications (2)

Publication Number Publication Date
EP2212232A1 EP2212232A1 (en) 2010-08-04
EP2212232B1 true EP2212232B1 (en) 2011-03-09

Family

ID=39683630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758601A Not-in-force EP2212232B1 (en) 2007-10-17 2008-05-17 Device for hoisting loads

Country Status (4)

Country Link
EP (1) EP2212232B1 (en)
AT (1) ATE501085T1 (en)
DE (2) DE102007049632A1 (en)
WO (1) WO2009049689A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB712195A (en) 1951-11-07 1954-07-21 King Ltd Geo W Improvements in or relating to grabs for reels or the like
US3104023A (en) * 1959-10-09 1963-09-17 John K Smith Handling apparatus
US4032185A (en) * 1976-06-11 1977-06-28 Peyton John J Internal gripper apparatus
US4708574A (en) * 1985-07-05 1987-11-24 D. W. Zimmerman Mfg., Inc. Apparatus for handling objects
JP2577033B2 (en) * 1988-03-08 1997-01-29 ▲高▼木産業株式会社 Chuck device
CA2005316A1 (en) 1988-12-14 1990-06-14 Leo R. Flanigan Grapple
CA2088539C (en) 1993-02-01 1995-04-18 John Margiottiello Apparatus for lifting objects having a hollow cylindrical core
US5642979A (en) * 1995-01-09 1997-07-01 N.R.S. Systems, Inc. Roll handling apparatus for fork lift trucks
WO2001021515A1 (en) * 1999-09-20 2001-03-29 Himecs Corp Winding roll lifting device
DE20201163U1 (en) * 2002-01-26 2002-04-11 TransOrt GmbH, 57392 Schmallenberg Pallet truck, as well as receiving device, in particular for a pallet truck

Also Published As

Publication number Publication date
WO2009049689A1 (en) 2009-04-23
EP2212232A1 (en) 2010-08-04
DE102007049632A1 (en) 2009-04-23
DE502008002843D1 (en) 2011-04-21
ATE501085T1 (en) 2011-03-15

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